So it turns out that the 2015 Driver's Station only works with cRio's with the v57 image.
Also, I managed to find the 2014 NI software after searching the NI forums. Here are the links if anyone needs them:
2014 Update Suite:
http://download.ni.com/support/softl...RC2014UpdateSu ite6.00.zip
2014 NI Software for FRC:
http://download.ni.com/support/softl...NI_FRC2014.zip
Once I re-installed the 2014 Driver's Station (which can coexist with the 2015 version), communications were excellent.